Results 71 to 80 of about 8,462 (239)

Correlated Polymer‐Proton Hopping Enables Water‐Independent Fast Proton Transport in Poly(Ionic Liquid) Membranes

Advanced Science, EarlyView.
A polymer chain in motion: backbone, ring, and counterion dynamics interlock across timescales to relay protons through poly(ionic liquid) membranes. ABSTRACT Polymer electrolyte membranes composed of ionic liquids (IL), capable of conducting protons efficiently at elevated temperatures, without external humidification, could transform fuel cell ...
Keenan Smith, Antonela Gallastegui, Zixuan Yu, Yuliana Pairetti, Andrew Seel, Jacques Ollivier, Victoria Garcia Sakai, Bob C. Schroeder, Maria Forsyth, Aurelie Gueguen, David Mecerreyes, Fabrizia Foglia   +11 more
wiley   +1 more source

Phase transitions in quantum dot-Majorana zero mode coupling systems

SciPost Physics Core
The magnetic doublet ground state (GS) of a quantum dot (QD) could be changed to a spin-singlet GS by coupling to a superconductor. In analogy, here we study the GS phase transitions in QD-Majorana zero mode (MZM) coupling systems: GS behaves phase ...
Yue Mao, Qing-Feng Sun
doaj   +1 more source

Emergent Magnetism, Heavy Electrons, and Pressure‐Induced Reentrant Superconductivity in the Iron Substituted 4d Transition‐Metal Sulfides

Advanced Science, EarlyView.
This work illustrates that magnetic Fe substitution enables systematic modulation of physical properties of the putative unconventional superconductor Rh17S15. Iron doping uncovers delicate competition between weak ferromagnetism, spin‐glass states, heavy‐fermion signatures, and superconductivity.
Yalei Huang, Lu Xin, Na Zuo, Bin Li, Wei Zhou, Dhanarajagopal Alltrin, Boning Yu, Haiyang Yang, Bin Qian, Wen‐Chin Lin, Raman Sankar, Michael Smidman, Xiangzhuo Xing, Chunqiang Xu, Xiaobing Liu, Jianhui Dai, Dong Qian, Shiyan Li, Xiaofeng Xu   +18 more
wiley   +1 more source

Solution‐Processed Multi‐Junction Optoelectronic Synapses for Mode‐Switchable SWIR Neuromorphic Vision Sensing

Advanced Science, EarlyView.
A novel bias‐programmable shortwave infrared (SWIR) vision sensor is developed using multi‐junction colloidal quantum dots (QDs). Under varying applied voltage, the back‐to‐back rectifying junctions effectively tune trapping centers to switch the device between high‐speed photodetector and persistent synapse modes.
Zhuoyang He, Dae Yang Oh, Yi Ji, Yanyan Li, Chengwei Shan, Soong Ju Oh, Tianshuo Zhao   +6 more
wiley   +1 more source

Optimized carrier confinement in green quantum-dot light-emitting diodes with ternary AlGaN and quaternary AlInGaN electron blocking layers

Materials Research Express
In this study, the optoelectronic characteristics of InGaN-based green quantum-dot light-emitting diodes incorporating ternary AlGaN and quaternary AlInGaN electron-blocking layer (EBL) are numerically investigated. The findings indicate that quantum dot
Muneeba Gul, Muhammad Usman, Shazma Ali
doaj   +1 more source

CdSe Quantum Dot (QD)-Induced Morphological and Functional Impairments to Liver in Mice

PLoS ONE, 2011
Quantum dots (QDs), as unique nanoparticle probes, have been used in in vivo fluorescence imaging such as cancers. Due to the novel characteristics in fluorescence, QDs represent a family of promising substances to be used in experimental and clinical imaging.
Wei Liu, Shuping Zhang, Lixin Wang, Chen Qu, Changwen Zhang, Lei Hong, Lin Yuan, Zehao Huang, Zhe Wang, Sijin Liu, Guibin Jiang   +10 more
openaire   +4 more sources

High‐Brightness and Ultra‐Long‐Lifetime Spin Quantum Dot Light‐Emitting Diodes Enabled by Efficient Injection of Spin‐Polarized Holes Through a Hybrid Hole Transport Layer

Advanced Science, EarlyView.
This work employs a hybrid hole transport layer to enhance hole transport efficiency, resulting in improved performance for the final device. It achieves an external quantum efficiency of 6.68%, a circularly polarized electroluminescence asymmetry factor of 0.026, and a high luminance of 14,370 cd/cm2, representing the highest luminance reported to ...
Fengqi Qiu, Hechun Zhang, Wenbo Liu, Guiming Zhong, Fumin Lu, Yuqi Wang, Fujin Ai, Kai Wang, Dan Wu   +8 more
wiley   +1 more source

Green Synthesis of InP/ZnS Core/Shell Quantum Dots for Application in Heavy-Metal-Free Light-Emitting Diodes

Nanoscale Research Letters, 2017
Quantum dot light-emitting diodes (QD-LEDs) have been considered as potential display technologies with the characterizations of high color purity, flexibility, transparency, and cost efficiency.
Tsung-Rong Kuo, Shih-Ting Hung, Yen-Ting Lin, Tzu-Lin Chou, Ming-Cheng Kuo, Ya-Pei Kuo, Chia-Chun Chen   +6 more
doaj   +1 more source

Cr1/4NbSe2‐Single Crystal Growth and Evolution of Antiferromagnetic Correlated States

Advanced Science, EarlyView.
High‐quality single crystals Cr1/4NbSe2 were synthesized and comprehensively characterized for the first time. Advanced structural, electronic, and magnetic measurements uncover a correlated antiferromagnetic state, resolving longstanding inconsistencies regarding magnetic behavior derived from earlier polycrystal studies.
Nour Abdelrahman, Bastian Rubrecht, Matheus Felipe de Souza Barbosa, Mahdi Behnami, Dmitriy Efremov, Daniel Wolf, Martin Valldor, Alexey A. Popov, Stanislav M. Avdoshenko, Marco Naumann, Martin Knupfer, Vladislav Kataev, Alexey Alfonsov, Anja U. B. Wolter, Michael Mertig, Bernd Büchner, Silke Hampel   +16 more
wiley   +1 more source

Interlevel absorption of electromagnetic waves by nanocrystal with divalent impurity

Condensed Matter Physics, 2014
The energy spectrum of central divalent impurity is calculated using the effective mass approximation in a spherical quantum dot (QD). The dipole moment and oscillator strength of interlevel transition is defined.
V. I Boichuk, R.Ya. Leshko
doaj   +1 more source